102057887 has 4 divisors (see below), whose sum is σ = 102099840. Its totient is φ = 102015936.

The previous prime is 102057883. The next prime is 102057947. The reversal of 102057887 is 788750201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102057887 - 2² = 102057883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102057887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102057881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17087 + ... + 22272.

It is an arithmetic number, because the mean of its divisors is an integer number (25524960).

Almost surely, 2^102057887 is an apocalyptic number.

102057887 is a deficient number, since it is larger than the sum of its proper divisors (41953).

102057887 is an equidigital number, since it uses as much as digits as its factorization.

102057887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41952.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 102057887 is about 10102.3703654142. The cubic root of 102057887 is about 467.3212440591.

The spelling of 102057887 in words is "one hundred two million, fifty-seven thousand, eight hundred eighty-seven".